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SQL Server timestamp timestampIn SQL Server Books Online, it says:The SQL Server timestamp data type is independent of time and date. SQL Server Timestamp is a binary number that indicates the relative order in which data modifications occur in the
Introduction to timestamp basic knowledge
Variant of the timestamp1,timestamp DEFAULT current_timestamp on UPDATE current_timestamp refreshes this data column when new records are created and existing records are modified
2,timestamp default
MySQL obtains the current date and time stamp function bitsCN.com
MySQL returns the current date, time, and timestamp.
1.1 obtain the current date + time (date + time) function: now ()
Mysql> select now ();
+ ------- +
| Now () |
+ ------- +
| 22:2
Variants of the timestamp 1,timestamp DEFAULT current_timestamp on UPDATE current_timestampRefreshes the data column when new records are created and existing records are modified 2,timestamp DEFAULT Current_timestamp This when creating a new
Mysql TIMESTAMP Usage Details, mysqltimestamp
1. TIMESTAMP variants
TIMESTAMP timestamps can have multiple different features during creation, such:
1. Refresh the data column when creating a new record or modifying an existing record:
TIMESTAMP
A variant of the timestamp
The timestamp timestamp can have multiple different characteristics when it is created, such as:
1. Refresh the data column when creating a new record and modifying an existing record:
TIMESTAMP DEFAULT
When we save the data into the database will probably use a script such as PHP to get a time to save to MySQL, in fact, MySQL can directly use the timestamp data type to implement the default type, the next look.Many times, in order to be simple, we
MysqlTIMESTAMP (timestamp) details bitsCN.com
TIMESTAMP variant1. timestamp default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP refresh this data column when creating a new record and modifying an existing record2, timestamp default
1.1 Get the current date + time (date + times) function: Now ()Mysql> Select Now (); + ——————— + | Now () | + ——————— + | 2013-04-08 20:56:19 | + ——————— +In addition to the now () function to get the current datetime, MySQL has the following
Because of the recent international go to Oracle on MySQL, this inevitably involves time zone and timestamp issues. Do an experiment and summarize.OracleFirst look at the definition of Oracle Concepts for timestamp:The TIMESTAMP data type is an
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